50 lines
1003 B
Markdown
50 lines
1003 B
Markdown
<!-- Note: This file is automatically generated from source code comments. Changes made in this file will be overridden. -->
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# Function tan
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Calculate the tangent of a value. `tan(x)` is equal to `sin(x) / cos(x)`.
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For matrices, the function is evaluated element wise.
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## Syntax
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```js
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math.tan(x)
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```
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### Parameters
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Parameter | Type | Description
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--------- | ---- | -----------
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`x` | number | BigNumber | Complex | Unit | Array | Matrix | Function input
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### Returns
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Type | Description
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---- | -----------
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number | BigNumber | Complex | Array | Matrix | Tangent of x
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### Throws
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Type | Description
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---- | -----------
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## Examples
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```js
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math.tan(0.5) // returns number 0.5463024898437905
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math.sin(0.5) / math.cos(0.5) // returns number 0.5463024898437905
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math.tan(math.pi / 4) // returns number 1
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math.tan(math.unit(45, 'deg')) // returns number 1
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```
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## See also
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[atan](atan.md),
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[sin](sin.md),
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[cos](cos.md)
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